Controller-operating means.



No. 854,688. PATENTBD MAY 21, moan A. J, BROWN.

CONTROLLER OPERATING MEANS, APPLICATION FILED AUG. 27, 1906.

- To all whom itwuty concern.-

UNITED STATES PATENT OFFICE.

ARTHUR J. BROWN, OF 'NoRWooD, 01110, ASSIGNOR T ALLIS-CHALMIERS COMPANY,A CORPORATION'OF NEW JERSEY, AND THE BULLOCK ELEC- TRIo MANUFACTURINGCOMPANY,A-C O]EtPO1EtATION or 01110.

' .CONTROLLER-OPERATlNG MEANS.

. No. 854,688; a

Specification of Letters Patent.

Patented May 21, 1907.

Application filed August 27,1906. Serial Nq- 352,247.

Be'it known that I, ARTHURJ. BROWN, a

citizen of the'United States, residing at Norwood, in-the countyofHamilton and State of Ohio, have invented certain new and usefulImprovements in Controller-Operating and exact specification Myinvention relates to means for operating motor-controllers, and itsobject is to render more positive and accurate the operaftion of acontroller employing quick-break mechanism.

In motor-controllers in which heavy currents are handled andespecially'in railway controllers it is advisable to have the operatingmechanism so constructed that a very rapid movement from one operatlveposition contacts of the controller thereby minimiz- Y ing thenecessityfor powerful blow-out magnets and other special devices forpreventing the formation of arcs My present invention is an improvementon the invention set forth in Patent No.

815,578issued March '20, 1906, to The Bullock-v Electric -ManufacturingCompany, a corporation of Ohio, on an application filed by In one aspectmy invention consists of the combination of a shaft, preferablythe-operating shaft ofa controller, a notched mem- .ber, a sliding boltarranged to en age the notches of said notched'member to' ock the shaftin any desired position, a handle mounted upon the shaft and yieldinglyconnected thereto, and means for moving said bolt out desired positionto permit the shaft to rotate under the action of said yieldingconnection of engagement with the notched member when the handle hasbeen moved into the into a po'sitioncorresponding to that into whiclfthehandle-has been moved.

Other features of my invention will appear i Figure l is a frontelevation of the upper part of a controller embod 'ng my invention,

some of the parts being s own in section on the line 11 of Fig.2. Fig. 2is a plan view of the controllerof Fig. l'with some of the parts brokenaway; and Fig. 3 is a view Means, of which the following isa full,clear,

somewhat similar to Fi 2, but showing the relation of the parts w on thecontroller is about to move from one position to another.

Referring to the drawings, the controller 'casin is represented by 4,the cap plate by 5 an the controller shaft by 6. Mounted from the upperend of said shaft 6 and ke' ed thereto is an arm- 7, which carries a sliin bolt 8 having-an enlarged head 9' integra therewith or otherwisefirmly attached thereto. The bolt Sis normallypressed outwardly by aspring 10 into en agement with the notches ll-of an internal y notchedring 12, This ring 12 is supported from the cap plate 5, as by aplurality of pillars 13. The notches 11 of the notched ring 12correspond to the operating positions of the controller. The. offposition is indicated by the notch 11, the operating mechanism beingshown in that position 111 Fig. '2. The operating handle 14 is looselymounted on the shaft 6 so that it can be, rotated relatively thereto,

but is prevented from movement longitudinally of the shaft as by thescrew 15. Ex-

tending downwardly from the operating handle 14 are three pins 16, 17,and 18, while extending upwardly from the arm 7 are two pins 19 and 20.A spring 21 extends from the pin 16, to the shaft 6, being located be- 1tween the pins 19 and 20.

When the handle 14 is moved from one position to the next, say in aforward or clockwise direction from notch 11%, the spring 21 engages pin19, and being stretched thereby, tends to draw the arm 7 with itsassociated controller mechanism after the handle 14/ However actualrotation of the arm 7 isprevented by the engagement of the bolt 8 in thenotch 1 1 until the handle 14 has reached the nextoperative position,when by reason of the engagement between the pin 17 and the enlargedhead 9 of the bolt 8 and the resulting movement'of the bolt, the latteris withdrawn from the notch 11 and the arm 7 is moved forward by thespring-21 until the bolt 8 engages in the first notch 11 to the left ofthe notch 11*, (Figs.2 & 3).

' Fig. 3 shows the relation of the parts just before the handle 14reaches the first operative position and with'the bolt 8 almost out. ofengagement with the notch 11. The slightest further forward movement ofthe handle 14 past the position shown in Fig. 2)

will release the bolt 8 from the notch L1 and Will allow the arm 1 andshaft 6 to move forward. A movement of the handle still farther in thesame direction will operate the bolt in the same manner as before andmove it to the next notch in advance. When the handle is moved in thedirection opposite to that described above and indicated in Fig. .3, thepins 18 and 20 will act in amanner similar to that described above inconnection with the pins 17 and 19. Movement beyond the full onposition'in either direction is prevented by one or more pins 24projecting upward from the ring 12 in the path of the pin 16. v

The projections between the: notches are of different heights, dependingu onthe distance thecontroller is to move etween positions. Theprojections 22 (Figs. 2 and. 3) are shown higher than the pro ections23; i. e., the inner surfaeeof the ring at 22 isof smaller radius thanat 23.- The heights of these projections are so proportioned that thebolt8 will not leave the notch correspondg QnePQSition. until the handlehasreachedthe .next position in advance, and the handle cannot be movedbeyond said advance position without first releasing the is he bolt 8andcausing the-shaft to move into the position eorrespondin to theosition occupied by the-handle. In fact, t e shaft din a certainposition until the handle just reaches the advanced position,independent of the distance apart of said positions, so. that formovement between some positions the ins 17 or 18 must move the ead 9 andt S'a'greater distance than for movement between. other positions. Thusthere is no danger of. the handle being moved sofar as toycause thecontroller to jump several notches'at a'single movement of the handle;

such modifications which come within the 'Olwiouslyafi manymodifications may be made in the specific structure herein set forth,

and I; aimto cover inthe following claims all spirit and scope of myinvention.

Having thus described mjinventiom'what I I claim as new and desire tosecure by Letters Patent is:-. p I p g 1; In combinatihn; a shaft, anotched member, a bolt engaging said notchedmemher to hold the shaft 111any desired position,

' an operating handle, a yielding connectionbetween the shaft and thehandle, and means for releasing the bolt from the notched inemher whenthe handle has been moved into the desired position in either directionto permit 7 the-shaft to rotate undertheinfiuence of said I to theposition of said yielding means into a lposition corresponding amass 2.In combination, a controller shaft; an arm fastened thereto andcarryinga sliding. bolt, an internally notched ring Withwhich said boltengages, a handle loosely mountedon said shaft, but yieldingly connectedtherewith, and. means or releasing said bolt 'from thenotched ring whenthe handle reaches the I yielding next position in advanee'to permit theshaft hold the shaft in any desired position, an op-= I dle, with theshaft,'. and means for releasing saidbolt to permit the shaft to moveinto said advance reaches a pre etermine erating handle, a springconnecting said hanositions 'ust as the handleadvance position indee'ndent -.of the distance apart of the I note es corresponding tothecontroller positions. p

4". In a controller, ashaft, an operatlng responding to the controllerpositions tohold the shaft in a certain position until the handle ismoved intothe next advance position handle, a springconnectingsaidshaft/and handle, a sliding-bolt engaging notchescorindependent of the distance apart of said position, and means forreleasing the bolt when the-handle reaches the advance position topermit the shaft tomove into sald advance position under the influenceof said's ring. 2

5. In combination, a controller s aft,- an;

aft and handle, a notched member having the height of the projectionsbetween notches proportional to'the throw of the shaft betweenoperativepositions, 'a sliding bolt 'engaging said notched-member to hold theolperatinghandle, a springconnecting said 3 s shaft in any desiredposition, and means for releasing'said bolt to permit the shaft to moveinto'said advance position just as the handle reaches an advanceoperative position.

mechanism having a series of. unequally spaced 0 erative positions andbiasedxto' move wit said handle though movablemde- 6. In combination, ahandle, controller pendently thereof, and-a sliding bolt-for loci?- mgthe control ler mechanism-in any opera a I tivep sition until the handleis moved into the next-operative position.

in the presence of two witnesses.-

Witnesses:

RUBY RoBINso FRED J. KINsEY.

ARTHUR. J. BROWN.

3 5] In testimony whereof Iafiix my signature,

